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发明名称
METHODS AND APPARATUS FOR THERMAL DRILLING
摘要
申请公布号
EP2347083(A2)
申请公布日期
2011.07.27
申请号
EP20090793358
申请日期
2009.10.08
申请人
POTTER DRILLING, INC.
发明人
WIDEMAN, THOMAS, W.;POTTER, JARED, M.;POTTER, ROBERT, M.;DREESEN, DONALD
分类号
E21B7/14;E21B7/18;E21B43/114
主分类号
E21B7/14
代理机构
代理人
主权项
地址
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